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美国及部分州经剖宫产术后阴道分娩的趋势和特点。

Trends and characteristics of home vaginal birth after cesarean delivery in the United States and selected States.

机构信息

Division of Vital Statistics, National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, MD, USA.

出版信息

Obstet Gynecol. 2012 Apr;119(4):737-44. doi: 10.1097/AOG.0b013e31824bb050.

Abstract

OBJECTIVE

To examine trends and characteristics of home vaginal birth after cesarean delivery (VBAC) in the United States and selected states from 1990-2008.

METHODS

Birth certificate data were used to track trends in home and hospital VBACs from 1990-2008. Data on planned home VBAC were analyzed by sociodemographic and medical characteristics for the 25 states reporting this information in 2008 and compared with hospital VBAC data.

RESULTS

In 2008, there were approximately 42,000 hospital VBACs and approximately 1,000 home VBACs in the United States, up from 664 in 2003 and 656 in 1990. The percentage of home births that were VBACs increased from less than 1% in 1996 to 4% in 2008, whereas the percentage of hospital births that were VBACs decreased from 3% in 1996 to 1% in 2008. Planned home VBACs had a lower risk profile than hospital VBACs with fewer births to teenagers, unmarried women, or smokers; fewer preterm or low-birth-weight deliveries; and higher maternal education levels.

CONCLUSION

Recent increases in the proportion of U.S. women with a prior cesarean delivery mean that an increasing number of women are faced with the choice and associated risks of either VBAC or repeat cesarean delivery. Recent restrictions in hospital VBAC availability have coincided with increases in home VBACs; however, home VBAC remains rare, with approximately 1,000 occurrences in 2008.

LEVEL OF EVIDENCE

II.

摘要

目的

检查 1990 年至 2008 年美国和部分州的经剖宫产术后家庭阴道分娩(VBAC)的趋势和特征。

方法

利用出生证明数据追踪 1990 年至 2008 年家庭和医院 VBAC 的趋势。对 2008 年报告该信息的 25 个州中计划家庭 VBAC 的数据进行社会人口统计学和医疗特征分析,并与医院 VBAC 数据进行比较。

结果

2008 年,美国约有 42000 例医院 VBAC 和约 1000 例家庭 VBAC,高于 2003 年的 664 例和 1990 年的 656 例。家庭分娩中 VBAC 的比例从 1996 年的不足 1%增加到 2008 年的 4%,而医院分娩中 VBAC 的比例从 1996 年的 3%下降到 2008 年的 1%。计划家庭 VBAC 的风险状况低于医院 VBAC,青少年、未婚女性或吸烟者的分娩次数较少,早产或低出生体重的分娩较少,产妇教育程度较高。

结论

美国有剖宫产史的女性比例最近有所增加,这意味着越来越多的女性面临 VBAC 或重复剖宫产的选择及相关风险。最近医院 VBAC 可及性的限制与家庭 VBAC 的增加同时发生;然而,家庭 VBAC 仍然很少见,2008 年仅发生约 1000 例。

证据水平

II。

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